This suggestion is echoed by the consistent results of neutron activation analysis on obsidian flakes by Burger and Glascock, which indicate Alca, in the Cotahuasi valley, to be the source of the rarest stone raw material on site.

US proposed regional trade agreement, ALCA, never got off the ground; the Andean union is in tatters as Colombia and Peru seek bilateral agreements with the US; Venezuela's proposed ALBA includes only the marginal economies of Cuba, Nicaragua, Dominica and Bolivia, and most of the flows are from Venezuela to its weaker associates, and its principle trading parties still include the US and now Asia, the Middle East and Russia.

Aircraft Management Solutions, the Amsterdam-based company that develops and distributes the ALCA asset management software application for aircraft and engine lessors, entered a strategic partnership with ADS France, "interfacing the ALCA software with the highly flexible document management and retrieval system of ADS France.

Raul Fernandez is a professor at the School of Social Science at the University of California, Irvine and a member of the Red Colombiana de Accion Frente al Libre Comercio y el ALCA (Recalca), a Colombian trade-union group opposed to trade agreements with the US.

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